Apr 4, 2025 · OpenCV (Open Source Computer Vision Library) is an open source computer vision and machine learning (AI) software library.

Jan 1, 2022 · Hi and happy new year to all, I have a small question regarding the imshow() method. I use the fullscreen property to expand the window to all the screen, but the displayed picture in this window still keep its original dimension. I would like the displayed image to expand on all the avalaible space even if ratio is not respected. How can I do that ? Following is my …

Sep 28, 2024 · My most recent side project is OpenCV On Web: a browser-based IDE for developing image processing applications. Unlike Jupyter Notebook, it runs entirely in the browser, eliminating the need for server infrastructure. Try out the edge detection demo: https://opencv.onweb.dev/

Apr 12, 2023 · Hello, I am using opencv.js. I’m wondering what cv.mean() actually measures? Is it light intensity or pixel values or something else? In my application I use it to measure values of LED:s turning on and of and the values vary from 190-80 approx.

Jul 9, 2012 · I want to compare two images whether same or not by using opencv plugin in eclipse JUNO 12.04 I have been installed opencv2.4.2 in Ubuntu If I can do, please help me sample java code about this Thanks a lot,

Feb 17, 2025 · I have an RTSP URL for streaming from a CCTV camera, but I get the following error: [ WARN:[email protected]] global cap_ffmpeg_impl.hpp:453 _opencv_ffmpeg_interrupt_callback Stream timeout triggered after 30046.359055 ms When I test the same URL in VLC by opening the network stream, the live feed works perfectly. What could be causing this issue, and how …

-1.3461989391514784e-01. so your cameras are about 134.6 mm apart? says the calibration. in the epiline picture it looks like the alignment didn’t succeed. various keypoints from the scene don’t match up.

Nov 15, 2024 · OpenCV is attempting to load GTK-based libraries for its GUI (opencv_highgui_gtk4100_64.dll, opencv_highgui_gtk34100_64.dll, etc.), but it is failing to do so. There are also failed attempts to load parallel processing libraries (like opencv_core_parallel_onetbb4100_64d.dll, opencv_core_parallel_tbb4100_64d.dll, and …

Oct 17, 2021 · This function cv.calibrateHandEye describes an eye-in-calibration process where camera is attached to a robot arm. I want to do an eye-to-hand calibration where a camera is fixed on a ceiling. My process is as the following: Fix calibration pattern on the robot gripper. Collect checkerboard poses, and robot poses. Robot pose is expressed as [x, y, z, w, p, r] (Euler …

Feb 26, 2021 · cv2.imshow("",img) is not showing the image probably the reason is that that i have installed two open cv one in base directory and one in virtual env now i want to uninstall all of them how I can completely uninstall and remove from all places to install th em again